this might help
http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsm79978
Cisco Call Manager MGCP configuration for E1 interfaces does not offer any of the following card types for channelised E1 operation -
VWIC-1MFT-G703
VWIC-2MFT-G703
VWIC2-1MFT-G703
VWIC2-2MFT-G703
Customers have been advised that since these cards are not supported, they cannot be used.
This is not correct. These cards are functionally similar to the the standard E1 VWIC's - the only difference is they offer an unframed (non channelised) mode of operation specifically for data.
They can be configured , and will operate correctly if configured as a standard E1 VWIC or VWIC2.
Use the following table to select the appropriate interface option to allow the G703 card card types to be configured on the Call Manager MGCP gateway configuation page -
Card type VWIC Configuration option
VWIC-1MFT-G703 --> VWIC-1MFT-E1
VWIC-2MFT-G703 --> VWIC-2MFT-E1
VWIC2-1MFT-G703 -->VWIC2-1MFT-T1/E1
VWIC2-2MFT-G703 --> VWIC2-2MFT-T1/E1